Aviation safety investigations & reports

Flight control systems event, involving Boeing 737-800, VH-YIJ, near Wellington, New Zealand, on 25 May 2017

Investigation number:
Status: Active
Investigation in progress


The ATSB is investigating the flight control systems event, involving Boeing 737-800, VH-YIJ, near Wellington, New Zealand, on 25 May 2017.

During approach, the crew detected a flap disagreement when the flap lever was selected from flap 25 to flap 40, and subsequently conducted a missed approach. During the missed approach, a flap overspeed occurred. The information was not relayed successfully to the cabin crew, resulting in the cabin crew incorrectly preparing a non-normal landing. Engineers could not reproduce the fault, however replaced the left-hand trailing edge flap position transmitter as a precaution.

As part of the investigation, the ATSB will interview the operating crew, obtain an engineering report and gather additional information.

A final safety report will be released following the conclusion of the ATSB’s investigation. Should a safety issue be identified during the course of the investigation, the ATSB will immediately notify those affected and seek safety action to address the issue.

General details
Date: 25 May 2017   Investigation status: Active  
Time: 2:10 UTC   Investigation level: Defined - click for an explanation of investigation levels  
Location   (show map): near Wellington International Airport   Investigation phase: Examination and analysis  
State: International   Occurrence type: Flight control systems  
  Occurrence category: Incident  
Report status: Pending   Highest injury level: None  
Anticipated completion: 2nd Quarter 2019    

Aircraft details

Aircraft details
Aircraft manufacturer The Boeing Company  
Aircraft model 737-8FE  
Aircraft registration VH-YIJ  
Serial number 39924  
Operator Virgin Australia International Airlines  
Type of operation Air Transport High Capacity  
Sector Jet  
Damage to aircraft Nil  
Departure point Brisbane, Qld  
Destination Wellington, NZ  
Last update 22 February 2019